Electronic structures are critical characteristics that determine the electrical, magnetic and
optical properties of materials. With the capability of directly visualizing band dispersions …

The ability to directly monitor the states of electrons in modern field-effect devices—for
example, imaging local changes in the electrical potential, Fermi level and band structure as …

The Coulomb interactions between excited electrons and holes have a very important
influence on the photophysical processes in 2D semiconductors. Exciton dissociation is one …

A key feature of monolayer semiconductors, such as transition-metal dichalcogenides, is the
poorly screened Coulomb potential, which leads to a large exciton binding energy (E b) and …

Two-dimensional (2D) semiconductors, eg, Mo S 2 and phosphorene, are promising
candidates for the channel materials of next-generation field-effect transistors (FETs) …

Understanding the remarkable excitonic effects and controlling the exciton binding energies
in two-dimensional (2D) semiconductors are crucial in unlocking their full potential for use in …

Recently, a novel two-dimensional (2D) MoSi2N4 has been successfully synthesized and
features high carrier mobility, moderate bandgap, and outstanding ambient stability (Science …

We report a combined experimental and theoretical investigation that reveals a new
mechanism responsible for the enhancement of electron-phonon coupling in doped …

Since silicon-based field-effect transistors (FETs) are approaching their scaling limit, two-
dimensional (2D) semiconductors have been proposed as alternative channel materials …

We derive electronic tight-binding Hamiltonians for strained graphene, hexagonal boron
nitride, and transition-metal dichalcogenides based on Wannier transformation of ab initio …